What is Shuffling and Sorting in a MapReduce?
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What is an identity mapper and identity reducer?
In mapreduce what is a scarce system resource? Explain?
Explain what does the conf.setMapper Class do in MapReduce?
What are advantages of Spark over MapReduce?
What is heartbeat in hdfs?
What is difference between a MapReduce InputSplit and HDFS block
What is mapreduce algorithm?
How many Mappers run for a MapReduce job?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
MapReduce Types and Formats and Setting up a Hadoop Cluster?
What is the need of key-value pair to process the data in MapReduce?
How does Mappers run method works?
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